UA 3902 then AA 6250 at O'Hare
Rio De Janeiro → Chicago → Kansas City
Timetable, Chicago time
17:01UA 3902 from Rio De Janeiro at the gate
10:01AA 6250 to Kansas City leaves the gate
17 h apart on the timetable, overnight
AA 6250 leaves 17 h after UA 3902 arrives on the timetable: more than half a day, so not a connection we count.